Four-folded umbrella with solid ribs

ABSTRACT

The invention relates to an improved rib structure for using in a four-folded umbrella. The character of the present invention includes a solid first rib, a solid second rib, a solid third rib, and a solid tail rib. Accompanying with branch ribs and elastic ribs, the assembled umbrella can have a small closed volume by use of every rib to be closed to a shaft of the umbrella. Hence, the present umbrella can be used more conveniently and effectively.

BACKGROUND OF THE INVENTION

As shown in FIG. 1 to 3, it is a traditional four-folded umbrella, whichincludes a first rib (11), a second rib (12), a third rib (13), and atail rib (5). A branch rib (14), an elastic rib (15), a U-shapedauxiliary rib (16), and a slice rib (17) are also provided forcompleting an umbrella frame. In order to have a small volume in closedstate, this known umbrella has the first rib (11) and the second rib(12) with U-shaped cross section usually. But the effect is not goodbecause of the provided connector between the ribs, the U-shapedauxiliary rib (16), and the slice rib (17) that causes the frame cannotbe effectively closed to the shaft of the umbrella to decrease theclosed volume.

The present invention is to provide an improved rib structure for usingin a four-folded umbrella, which can be closed with a small volume forfacilitating carrying by users that overcomes the drawback of prior art.Now, accompanying with the following drawings, the character of thepresent invention will be described here and after.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing frame ribs of a traditionalfour-folded umbrella.

FIG. 2 is a plan view showing the traditional four-folded umbrella inopening state.

FIG. 3 is a plan view showing the traditional four-folded umbrella inclosing state.

FIG. 4 is a perspective view showing a four-folded umbrella with solidribs according to the present invention.

FIG. 5 is a plan view showing the four-folded umbrella in opening stateaccording to the present invention.

FIG. 6 is a plan view showing the four-folded umbrella in closing stateaccording to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 4 to 6, the present invention relates to an improvedrib structure for using in a four-folded umbrella. The character of thepresent invention mainly includes a solid first rib (21), a solid secondrib (22), and a solid third rib (23). A connector (3) is provided topivot with the outer end of the first rib (21) and the inner end of thesecond rib (22). A branch rib (24) has its fork end connect with middleportion of the first rib (21). A solid auxiliary rib (26) has its oneend connect with a rivet (241) of the branch rib (24) and its other endconnect with a rivet (31) of the connector (3) for that the auxiliaryrib (26) is parallel to the first rib (21).

The second rib (22) has its outer end connect to a joint (4), whichconnects with the inner end of the third rib (23). An elastic rib (25)has its one end connect with outer portion of the second rib (22) andthe other end with a beam (52) of another joint (51) connected to innerend of the tail rib (5). A loop (53) is provided to hook the elastic rib(25) on the third rib (23). Another elastic rib (6) provided between thefirst rib (21) and the second rib (22) is hooked on the second rib (22)by a loop (61), which replaces the conventional slice rib.

Under the assembly as the above mention, the structure of the assembledumbrella will be more strong and stable since the frame includes suchsolid ribs. Further, when the umbrella is closed, every rib can beeffectively closed to a shaft (7) of the umbrella. Hence, the umbrellaof the present invention obtains a small closed volume and will beuseful and convenient. Hence, the present invention should be allowedfor a patent.

1. A four-folded umbrella with solid ribs including a solid first rib, asolid second rib, a solid third rib, and a tail rib; a connector beingprovided to pivot the outer end of the first rib and the inner end ofthe second rib, a branch rib having its fork end connect to a middleportion of the first rib, a solid auxiliary rib having its one endconnect to the branch rib and its other end connect to an end of aconnector for that the auxiliary rib is parallel to the first rib, thesecond rib having its outer end connect to a joint, which connects to aninner end of the third rib, the third rib having its outer end connectto a joint, which is connected to an inner end of the tail rib, anelastic rib having its one end connect to an outer portion of the firstrib and the other end to the joint, and a loop being provided to hookthe elastic rib on the second rib, and another elastic rib beingprovided between two ends of the third rib and having a loop for beinghooked on the third rib.